121,835 research outputs found
Dall’analisi delle gare all’elaborazione di un percorso di allenamento per giocatori U15.
No full textLo scopo di questo studio è stato quello di elaborare una metodica specifica di allenamento per lo sviluppo della potenza aerobica che derivasse dall’analisi cinematica e fisiologica rilevata dalla partita. Nel corso della ricerca è stata monitorata l’attività di gioco di nove calciatori (età 14,1 ± 0,6 anni, altezza 173,2 ± 3,8 cm e massa corporea pari a 62,0 ± 7,6 kg) appartenenti alla squadra Asd Lupa Frascati (Roma, Italia) durante sette gare ufficiali. Utilizzando la tecnologia GPS è emerso che il giovane calciatore ricopre mediamente, durante 60 minuti di gioco, una distanza di 6499,3 ± 282,9 m. Gli sforzi condotti ad alta intensità rappresentano il 4,1 % della distanza totale percorsa in gara (266,5 ± 11,6 m; velocità 16 – 18 km ∙ h-1) e gli sprint il 4,5 % (292,5 ± 12,7 m; velocità > 18 km ∙ h-1). La costruzione del percorso di allenamento si è basata sull’analisi delle intensità misurate durante un minuto di gara (108,3 ± 4,7 m/min) di cui, mediamente, 4,5 m rappresentano le attività svolte ad alta intensità e 4,9 m le azioni di sprint L’intensità media registrata durante l’esercitazione è stata del 90,5 ± 2,0 % (n = 8) della frequenza cardiaca massima, con una concentrazione media di lattato ematico di 4,23 ± 0,02 mmol ∙ L-1 (n = 3)
Proposta de um modelo de empresas holding para a estrutura da Ludovico J. Tozzo & cia. ltda.
No full textTCC (graduação) - Universidade Federal de Santa Catarina, Centro Sócio Econômico, Curso de Administração.O presente estudo propôs um modelo de empresas holding para a estrutura da Ludovico J. Tozzo & Cia. Ltda. A escolha da organização estudada deriva da facilidade ao acesso de dados relativos à empresa por parte do pesquisador, devido proximidade familiar deste com os proprietários da empresa. Como o objetivo do trabalho dependia de uma profunda análise da empresa, utilizou-se o método qualitativo através do estudo de caso. 0 trabalho encontra-se dividido em três partes fundamentais. Na primeira consta o levantamento de referencial teórico relativo aos temas Empresas Familiares, Empresas Holding e Governança Corporativa. Na segunda etapa, a partir do diagnóstico organizacional, é feito o levantamento de dados relativos à empresa estudada, no qual identificaram-se aspectos prejudiciais ao desempenho administrativo. Na terceira parte buscou-se desenvolver como proposta, um modelo que atendesse às atuais necessidades administrativas da empresa e que também proporcionasse a preparação para uma possível adoção de um sistema de governança corporativa; tema atual que a cada dia mostra mais importância perante o desempenho dos mercados mundiais. Quanto aos resultados, percebeu-se que de acordo com a teoria estudada, o modelo proposto pode suprir as necessidades principais da empresa, bem como servir de base de sustentação para o crescimento, expansão e adoção de novas práticas de gestão
Studio sperimentale sulle variazioni biomeccaniche e neuromuscolari sul colpo di testa in funzione delle varie tipologie di palla in bambini in età scolare.
No full textOral amelanotic melanoma: a case report
No full textObjectives. Primary oral melanoma is a very rare malignancy, representing about 0.5% of all melanomas, characterized by a wide clinical-histological variability and a very aggressive behavior. Aim of the present study is to describe
a case of oral amelanotic melanoma, an infrequent variant with a poorer prognosis than that of pigmented
melanomas for a more aggressive biological behavior and frequent delays for the correct diagnosis and for starting the treatment.
Case report. A 53-year-old white man referred at the Department Surgical, Oncological and Oral Sciences for a macular, scarsely pigmented lesion with irregular margins, located on anterior region of hard palate. The lesion, completely asymptomatic and without any history of trauma or injury, was observed by his dentist some months ago. The patient
was a smoker (about 20 cigarettes a day for 30 years) and his anamnesis was negative for any systemic diseases and drug assumption. Histological examination, following the incisional biopsy, showed the hyperplasia of the junctional melanocytes with occasionally dendritic appearance and light atypia; on the recommendation of pathologist, a second incisional biopsy was performed, and a definitive diagnosis of “amelanotic melanoma in situ” was confirmed. After diagnosis,
the patient was referred to the unit of Head and Neck Surgery for staging and surgical approach of the lesion.
Conclusions. This case report underlines the importance to perform biopsy of all lesions of the oral cavity to rule out malignancy, even when slightly colored, asymptomatic and with a clinically harmless presentation. Besides benign
diseases (e.g melanotic macules, nevi, extravasation of blood pigments, amalgam tattoos and deposition of other exogenous/endogenous pigments), rare variant of non-pigmented melanoma should be considered in order to avoid a dangerous diagnostic and therapeutic delay
Conscientious objection in Italian law n. 219/2017: a space for reflection still to be traced
No full textItalian Law no. 219/2017, containing provisions on informed consent and advanced directives, represents the landing place that the Italian legislature has reached following a long debate in relation to the issues of end of life and living wills. Although many authors have given the law a positive reception, some critical aspects have arisen, such as the issue of conscientious objection for healthcare professionals. Recognizing that the debate is far from being resolved, this article highlights the controversial aspects of conscientious objection as covered by Law no. 219/2017, but also the more general regulatory assumptions regarding this issue.Italian Law no. 219/2017, containing provisions on informed consent and advanced directives, represents the landing place that the Italian legislature has reached following a long debate in relation to the issues of end of life and living wills. Although many authors have given the law a positive reception, some critical aspects have arisen, such as the issue of conscientious objection for healthcare professionals. Recognizing that the debate is far from being resolved, this article highlights the controversial aspects of conscientious objection as covered by Law no. 219/2017, but also the more general regulatory assumptions regarding this issue
Verifica delle relazioni esistenti fra parametri inematici di mezzi di allenamento basati su “Small Side Games” e competizioni ufficiali in giovani calciatori della categoria “under 18”.
No full textMatch analysis e sport di squadra. Controllo delle relazioni tra qualità fisiche di giovani calciatori U14 valutate tramite test da campo e la prestazione fisica espressa in gara.
No full textInvestigation of Dilatancy Effects on Asphalt Interface Shear Strength
No full textDilatancy is described as the shear-induced volume change in granular materials. An inclined shear test was used in this study to measure dilatancy on double layer asphalt specimens, where, due to the configuration of the device, dilatancy can-not be inhibited. Under monotonic loading conditions, three angles of 30°-45°-60° between the specimen axle and the horizontal were considered, so as to set differ-ent ratios between normal and shear force. A guillotine shear test was used to compare allowed and inhibited dilatancy at different levels of applied normal stress. The dilatancy angle ψ and the dilatancy speed were introduced as useful parameters to characterize the phenomenon. The results proved that, by inhibiting dilatancy, the interface shear strength increases of a constant amount regardless of the applied normal pressure. Moreover, the comparison of the test outcomes between the two devices highlighted the non-contemporaneity between the dila-tancy speed peak and the shear stress peak in the inclined shear test. It can be at-tributed to the fact that the volumetric expansion of the specimen is countered by the normal stress, which increases proportionally to the shear stress during the test
- …
